28 results found

Search Results for: methane

Methane

methane (Science: chemistry) A light, colourless, gaseous, inflammable hydrocarbon, CH4; marsh gas. See marsh gas, under... Read More

Methanotroph

Definition noun, plural: methanotrophs An organism that metabolize methane as a source of carbon and... Read More

Methanogenesis

Definition noun A metabolic process in certain microbes wherein methane is produced Supplement Methanogenesis is a metabolic... Read More

Hydrogen

Hydrogen is one of the chemical elements found in nature. A chemical element refers to the pure substance of one type of... Read More

Methanogen

Definition noun, plural: methanogens An archaeabacterium capable of methanogenesis Supplement A methanogen pertains to any... Read More

Cellular respiration

Cellular Respiration Definition The main function of cellular respiration is to break down glucose to form energy. What is... Read More

Carbon dioxide

Carbon Dioxide Definition noun, car·bon di·ox·ide, /daɪˈɒksaɪd/ (biochemistry) An inorganic compound, with the... Read More

Anaerobic respiration

Anaerobic Respiration Definition What is anaerobic respiration? Anaerobic respiration is a respiratory process that occurs... Read More

Unicellular

Unicellular organisms are organisms consisting of one cell only that performs all vital functions including metabolism,... Read More

Fermentation

Fermentation Definition What is fermentation? Fermentation is the breaking down of sugar molecules into simpler compounds... Read More

Carbon

Carbon is one of the chemical elements found in nature. A chemical element refers to the pure substance of one type of atom.... Read More

Aldehyde

Aldehyde (Science: chemistry) a carbon atom double-bonded to an oxygen, single-bonded to a hydrogen, and single-bonded to... Read More

Biotic factor

Biotic Factor Definition Biotic factors (also known as biotic components) are the living component in an ecosystem. The... Read More

Endosymbiotic theory

Endosymbiotic theory definition noun (evolutionary biology) A theory suggesting that the organelles such as mitochondria... Read More

Syntrophy

Definition noun A biological circumstances of two different species of microorganisms that are mutually dependent with... Read More

Greenhouse effect

Definition noun The distinctive heating effect on the Earth's surface due to the gases in the atmosphere that trap solar... Read More

Greenhouse gas

Definition noun Any of the atmospheric gases responsible for the greenhouse effect. Supplement Examples of greenhouse gases... Read More

Biology: A Guide to the Natural World by D. Krogh

Biology: A Guide to the Natural World      ... Read More

Symbiosis

Symbiosis Definition What is symbiosis? Symbiosis can be defined as any kind of relationship or interaction between two... Read More

Waste management

Waste management refers to the various schemes to manage and dispose of wastes. It can be by discarding, destroying,... Read More

Prokaryote

Prokaryote refers to any of the group of organisms primarily characterized by the lack of true nucleus and other... Read More

Type

type 1. The mark or impression of something; stamp; impressed sign; emblem. 2. Form or character impressed; style;... Read More

Homologous

Homologous Definition What is homologous? In general science, the word “homologous” is used to show a degree of... Read More

Polysaccharide

Reviewed by: Todd Smith, PhD Polysaccharide Definition noun plural: polysaccharides pol·y·sac·cha·ride,... Read More

Archaebacteria

Definition noun, singular: archaebacterium Unicellular microorganisms in the domain Archaea, which is genetically distinct... Read More

Archaea

Archaea are the unicellular prokaryotes that comprise the domain of the same name, Archaea. These microorganisms are... Read More

Galactose

Definition noun plural: galactoses ga·lac·tose, ɡəˈlæktəʊz An aldohexose monosaccharide (chemical formula:... Read More

Lactose

Definition noun plural: lactoses lac·tose, ˈlæk.toʊs A disaccharide (chemical formula: C12H22O11) made up of one... Read More